19719609

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 34933248

約数和(自身を除く): 15213639

約数列:

[1, 3, 7, 13, 17, 21, 39, 49, 51, 91, 119, 147, 221, 273, 357, 607, 637, 663, 833, 1547, 1821, 1911, 2499, 4249, 4641, 7891, 10319, 10829, 12747, 23673, 29743, 30957, 32487, 55237, 72233, 89229, 134147, 165711, 216699, 386659, 402441, 505631, 939029, 1159977, 1516893, 2817087, 6573203, 19719609]

約数ペア:

[(1, 19719609), (3, 6573203), (7, 2817087), (13, 1516893), (17, 1159977), (21, 939029), (39, 505631), (49, 402441), (51, 386659), (91, 216699), (119, 165711), (147, 134147), (221, 89229), (273, 72233), (357, 55237), (607, 32487), (637, 30957), (663, 29743), (833, 23673), (1547, 12747), (1821, 10829), (1911, 10319), (2499, 7891), (4249, 4641)]